Harman Kardon AVR 225 Receiver "harmon surround sound hums" Questions

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Question about Harman Kardon Audio Players & Recorders

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...surround sound and a Harmon Kardon AVR-35. Usually Humming noises come from frequency interferance. In this case it is being caused by your input sources. A smiply solution is to replace the cables ...

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Question about Harmon Kardon Audio Players & Recorders

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...surround sound feature. also now when I turn it on, it stays on for a minute or two then shuts off? I rewired my speakers to see if that would help the humming, nothing? I connected another stereo up ...

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Question about Panasonic Audio Players & Recorders

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...surround sound. Now when I use auxillary, there is humming through my speakers. What do you think is the cause and what can I do to correct this. Most humming in North America is either 60Hz or a ...

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